Forums & Firefox browser

The forums fonts have suddenly changed today to something practically unreadable when I use Firefox v7.0.1. The site was okay this morning, but suddenly altered around 8am.
I'm now using IE 8 and the fonts are 'normal' but the site is taking ages to load.
I'm not having problems on any other websites.

I have problem with Firefox. Site(forum) is loading slow. Refreshing also is slow. And this is since some time now. I am with Firefox 8 now. But , I think i have this problem before too. With IE 8, I have no problem.

I have problem with Firefox. Site(forum) is loading slow. Refreshing also is slow. And this is since some time now. I am with Firefox 8 now. But , I think i have this problem before too. With IE 8, I have no problem.

Try clearing your cookies for the site and creating new ones (Options > Privacy > Remove individual cookies). Delete the entire folder. If that doesn't fix the slow loading, try restarting Firefox in Firefox Safe Mode (Help > Restart with add-ons disabled). If it works correctly in safe mode, then it's a problem with one of your extensions. If it's still slow, then you may need to create a new Firefox profile - especially if your current one dates from before Firefox 4.